& nbsp; the factory production of the elbow for hydraulic control valve supporting the use, the specifications for 1 / 2 and phi 10 copper pipe single head wire, for the use of others of the same product specifications, generally used for the circulation of water and oil, such as circulation of other substances, please before buying to Manufacturers Association. At the same time, our factory can also according to the customer request custom a variety of other materials such as copper, iron, aluminum, stainless steel, stainless iron fittings, contact: QQ:1007267708, telephone / Fax: 0575-87651982, phone: 13216855732, Ms. Chen.